19664589

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1237}}^1$

素因数の和:2004

約数の個数: 16

約数和(自身を含む): 30028928

約数和(自身を除く): 10364339

約数列:

[1, 3, 7, 21, 757, 1237, 2271, 3711, 5299, 8659, 15897, 25977, 936409, 2809227, 6554863, 19664589]

約数ペア:

[(1, 19664589), (3, 6554863), (7, 2809227), (21, 936409), (757, 25977), (1237, 15897), (2271, 8659), (3711, 5299)]